Improvement in sewer and stench traps



UNTED STATES PATENT OFFICE.

HENRY H. YOUNG, OF NEVPORT, RHODE ISLAND.

IMPROVEMENT IN SEWER AND STENCH TRAPS.

Speeilication forming part of Letters Patent No. 152,449, dated June 23,1874; application filed i June 18, 1874.

To all ahom it may concern Be it known that I, HENRY H. YOUNG, ofNewport, in the county of Newport and Sta-te ot' Rhode Island, haveinvented certain new and useful Improvements in Sewer or Stench Trap andI do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it pertains to make and use it, reference being had to theaccompanying drawings, which form part ot' this specification.

My invention relates to an improved sewer-` p trap for use 1n houses,and is designed to prevent the stench from the sewer from coming backthrough the trap into the house. The invention consists in a trap thatis closed by a door or fallin g valve that operates by gravity, and aseparate and distinct sateguard is provided in a water-seal, all ashereinafter specified and claimed.

In the drawings, Figure 1 is a view in section of the improved trap,which may be located in the cellar-drain, or at any point where olia-lis led away to the sewer.

A is a basin, made water-tight, so as to hold the water in it at a levelabove the screen E. B is a box, provided with outlet b to the sewer. Cis a door, hinged at the top to the inclined wall ofthe box B, and isheld closed over the inlet port or valve by the action of gravity. D isthe inclined cap, closing entirely around the front of the inlet port orvalve, and provided at the bottom with a screen, E, or perforatedsurface.

The operation of the device is as follows: Oii'al thrown into the basinA will rise till it passes into the sewer-connections b, through thestrainer E, the valve C, and the box B, and will continue to flow as lonas the height ot water in the basin A is 'greater than the. height ofthe bottom of the outlet-port b. It will then stop, and the door O willclose by its own gravity, and prevent the return of stench; but thewater in the basin A will still stand at a height above the screen E,and form a perfect water-seal, to prevent the return of' stench from thesewer in case the door should happen to be impeded; or, in case stenchshould escape into the inclined cap D while the water is passing throughthe door C, it is prevented from escaping by the water-seal in the basinA.

' It will be.- seen that the waste-has to pass through the screen O frombelow, and the waste does not, therefore, act, as ordinarily, to closethe perforations by its own gravity, but drops from the screen.

It is designed with this trap and a streetsewer trap, for which Iapplied I'or Letters Patent June 9, 1874, which also prevents the escapeof stench, to make a complete stenchtight system of sewerage.

That I claim isl. The stench trap composed of basin A, box B, gravitytrap-door C, cap D, and screen E, the whole constructed and operating inthe manner substantially as described.

2. The combination ot' cap D and screen E with the basin A, the wholeadjustedto pass water through the screen from beneath, and to form awater-seal, substantially as and for the purposes setforth.

In testimony that I cla-im the foregoing I have hereunto set my handthis 17th day of June, 1874.

HENRY H. YOUNG.

Titnes'ses WELLS W. LEGGETT, R. M. BARR.

